The term "highway" is defined in 27 CFR 555.11 as "any public street, public alley, or public road, including a privately financed, constructed, or maintained road that is regularly and openly traveled by the general public."

Privately financed, constructed or maintained roads that are not regularly or openly traveled by the general public do not fall within the meaning of the term and would, therefore, be exempt from table of distance requirements. See ATF Ruling 2005–2 for more information.

[27 CFR 555.11: definition of "highway"]